Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
hoc hieu » hoc thieu, hoc hien, hoc dieu
doc hieu » toc thieu, hoc thieu, hoc hien
van bang » van ban, van nang, von bang
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hieu) or (doc hieu)) manh - thanh tran ((van bang) or (van dong)) cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (doc hieu)) manh - thanh tran ((van bang) OR (van dong)) cong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) or (doc hieu)) manh - thanh tran ((van bang) or (van dong)) cong tan toan cao*.